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Troubleshooting

23

Samsung Electronics

6-2-2 Room temperature sensor failure

No

ASS'Y Sensor Replace

SENSOR Resistance Value : 20˚C-12.09k

Ω

SENSOR Resistance Value :

30˚C-8.31k

Ω

SENSOR Resistance Value :

35˚C-6.94k

Ω

SENSOR Resistance Value :

40˚C-5.83k

Ω

Yes

No

No

Detach the assembly sensor from the

ASS'Y PCB CN43 connector and measure

the sensor resistance with an ohmmeter(tester).

Connect the sensor to CN43,

supply power, and measure the voltage of

#1 and #2 of the CN43 connector.

MICOM Error or Connector(CN43) check

Is the sensor resistance value

10K

Ω

±3% at the room temperature

of 25˚C?

Yes

Poor ASS'Y PCB Replace

Below 0.5V?

Yes

Poor ASS'Y PCB Replace

Over 4.9V?

Indoor unit room temperature sensor error(open or short)

Description

LAMP

OPERATION

TIMER

TURBO

7-segment

Display

: Lamp flickering

: Lamp off

DB98_21605A(1)_1 1/5/05 7:47 PM Page 23

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Содержание SH18AP0D

Страница 1: ...l CONTENTS AIR CONDITIONER 1 Product Specifications 2 Operating Instructions Installation 3 Disassembly and Reassembly 4 Refrigerating Cycle Diagram 5 Set Up the Model Option 6 Troubleshooting 7 Exploded Views and Parts List 8 Block Diagram 9 Wiring Diagram ROOM AIR CONDITIONER ...

Страница 2: ... mm Package Dimensions Width mm Depth mm Weight Net kg Shipping kg SH18AP0D Cool Heat 220 240V 50Hz 5 1 5 8 13 0 13 5 2 5 198 264 8 3 8 1 1 81 1 80 94 8 96 6 2 81 3 22 40 Microprocessor Thermistor Wireless remote control 24 Hour ON OFF 3 Steps and Turbo 1 Step Manual Auto Rotary Samsung 1 250g Capillary tube 48 46 44 58 Flare type 15 6 35 1 4 12 70 1 2 Optional Hanger plate Indoor unit Outdoor uni...

Страница 3: ... 21 5 15 0 9 8 7 6 25 30 35 40 45 18K BTU 20 10 9 8 7 6 25 30 35 40 45 32 4 24 0 30 6 22 5 28 8 21 0 27 0 19 0 24 0 17 0 21 5 15 0 24K BTU Outdoor inlet air D B temp C Low pressure kg cm 2 G Indoor inlet air D B temp C Outdoor inlet air D B temp C Low pressure kg cm 2 G Indoor inlet air D B temp C ...

Страница 4: ... To increase the temperature by the pressing the temperature button On Off UP DOWN Low Medium High Automatic rotated Sleep button The sleep timer can be used when you are cooling or heating your room to switch the air conditioner off automatically after a period of 6 hours Turbo button The air conditioner cools or heats the room as quickly as possible After 30minutes the air conditioner is reset a...

Страница 5: ...r more times until the required time display FUNCTION Anion button Press the button to generate ion from the air conditioner BUTTON No 9 10 11 12 13 On Timer button The On Timer enables you to switch on the air conditioner automatically after a given period of time that is from 30 minutes to 24 hours To set the operating time press the button one or more times until the required time display Timer...

Страница 6: ...erature release Prevention against freeze 5 TURBO MODE This mode is available in AUTO COOL HEAT DRY FAN MODE When this button is pressed at first the air conditioner is operated powerful state for 30 minutes regardless of the set temperature room temperature When this button is pressed again or when the operating time is 30 minutes turbo operation mode is canceled and returned to the previous mode...

Страница 7: ...er a given period of time You can set the period of time from 30 minutes to 24 hours 11 GENERATING ANION The air conditioner can generate anion with an ionizer in the indoor unit 12 SELF DIAGNOSIS 13 BUZZER SOUND Whenever the On Off button is pressed or whenever change occurs to the condition which is set up or select the compulsory operation mode buzzer is sounded beep Indoor unit room temperatur...

Страница 8: ...ng Connecting You shall cut the pipe straightly with a pipe cutter and grind all the burrs of the cut surface Pipe expansion may continue until the pipe surface becomes uneven or torn apart Be sure to use a torque wrench to tighten pipes or flare nuts Leak Test Put an inert gas like nitrogen in the outdoor unit pipe and put soap bubbles or other test liquids on the pipe surface for the leak test D...

Страница 9: ...old gauge clockwise Remove the hose of the low pressure side of manifold gauge 7 Check for gas leakage At this time especially check for gas leakage from the 3 Way valve s stem nuts and from the service port cap 2 Connect the charging hose of low pressure side of manifold gauge to the packed valve having a service port 3 8 Packed valve as shown at the figure 5 Set valve cork of both liquid side an...

Страница 10: ... to the service valve and open the 3 Way valve again 5 Check the pressure indicated by the pressure gauge low pressure side Standard pressure is should be 9 0 10 0kg cm2 in a regular high operation mode 6 Open the refrigerant tank and fill with refrigerant until the rated pressure is reached It is recommended not to pour the refrigerant in too quickly but gradually while operating a pressure valve...

Страница 11: ...er Relocation of the air conditioner Refer to this procedure when the unit is relocated Carry out the pump down procedure refer to the details of pump down Remove the power cord Disconnect the assembly cable from the indoor and outdoor units Remove the flare nut connecting the indoor unit and the pipe At this time cover the pipe of the indoor unit and the other pipe using a cap or vinyl plug to av...

Страница 12: ...forwards 4 Open the upper Front Grille by pulling right and left sides of the Grille 5 Take the left and right Filter out 6 Loosen one of the right screw and detach the Terminal Cover 7 Detach the thermistor from the Front Grille 8 Loosen 6 fixing screws of Front Grille 9 Pull the lower left and right of discharge softly for the outside cover to be pulled out 10 In order to disassemble the Panel G...

Страница 13: ...uding Power Cord 2 Detach the outdoor unit connection wire from the Terminal Block 3 If pulling the main PCB up it will be taken out 1 Pull Tray Drain out from the Back Body 1 Loosen 2 fixing earth screws of right side 2 Detach the Connection Pipe 3 Detach the Holder Pipe at the rear side 4 Loosen 2 fixing screws of right and left side 5 Detach the Heat Exchanger from the indoor unit ...

Страница 14: ...ssembly No Parts Procedure Remark 5 Fan Motor Cross Fan 1 Loosen 4 fixing screws and detach the Motor Holder 2 Loosen 1 fixing screw of Fan Motor with a M6 wrench 3 Detach the Fan Motor from the Fan 4 Detach the Fan from the left Holder Bearing ...

Страница 15: ...ark 1 Common Work 1 Loosen the fixing screw of the Cover Control 2 Loosen the fixing screws of the Cabinet Upper 3 Loosen the fixing screws of the Cabinet Side RH 4 Loosen the fixing screws of the Cabinet Side LF 5 Loosen the fixing screws of the Ass y Control Out ...

Страница 16: ...ixing screws to detach the Motor 1 Loosen 2 fixing screws on both side 2 Disassemble the pipe in both inlet and outlet with welding torch 3 Detach the Heat Exchanger 1 Loosen the Terminal Cover to open the Terminal Cover 2 Disassemble the Cloth Sound Felt 3 Disassemble the pipe in both inlet and outlet of the Compressor with welding torch 4 Loosen 3 bolts at the bottom 5 Detach the Compressor ...

Страница 17: ...rigerating Cycle Diagram Indoor Unit Outdoor Unit T1 T2 2 Way valve 3 Way valve Gas side Heat Exchanger Heat Exchanger Liquid side Capillary tube 4 Way valve Cooling Heating Gas leak check point Compressor Cross fan Propeller fan ...

Страница 18: ...sh the button the display panel reads or repeatedly Setting is not required if you must a value which has a default Push the button to set the display panel to Every time you push the button the display panel reads repeatedly 3 Push the button to set the display panel to Every time you push the button the display panel reads repeatedly 4 Push the button to set the display panel to Every time you p...

Страница 19: ...F key with the direction of remote control for set 7 8 Press button then the default value is Push the button to set the display panel to Every time you push the button the display panel reads repeatedly Push the button to set the display panel to Every time you push the button the display panel reads repeatedly 10 Push the button to set the display panel to Every time you push the button the disp...

Страница 20: ...19 Samsung Electronics Set up the Model Option OPTION ITEMS REMOCON MODEL SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SH18AP0D SH24AP6D 0 8 4 0 1 3 1 7 0 3 5 1 0 8 7 2 1 4 1 d 0 3 6 2 ...

Страница 21: ... The compressor and indoor fan stop intermittently in HEAT mode In case of heat pump model Indoor fan and outdoor fan stop operation intermittently in a HEAT mode 1 2 3 4 5 6 7 8 9 Operation of air conditioner Explanation It indicates power is on The LED stops blinking if the opera tion ON OFF button on the remote control unit is pushed In happens after a delay of 3 minutes when the compressor is ...

Страница 22: ...ER TURBO Lamp flickering Lamp off No response from the remote control operation signal Unable to operate the outdoor unit Plug out and plug in 5 seconds later Press the TURBO button with the remote control In 3 minutes check the voltage between the indoor unit terminal block N 1 and 1 Able to operate the remote control Unable to operate the remote control AC198V AC242V No power source displayed OK...

Страница 23: ...the air conditioner Check whether two wires of power cord are connected correctly to the terminal block and control board Check whether the fuse on the control board is normal FUSE 3 15 A 250 V Check the output of SMPS on the control board Input power AC230 15 V IC02 Input DC12 V IC02 output DC5 V Check the setting temperature Check the indoor unit control board Check the display board Reconnect w...

Страница 24: ...S Y PCB CN43 connector and measure the sensor resistance with an ohmmeter tester Connect the sensor to CN43 supply power and measure the voltage of 1 and 2 of the CN43 connector MICOM Error or Connector CN43 check Is the sensor resistance value 10KΩ 3 at the room temperature of 25 C Yes Poor ASS Y PCB Replace Below 0 5V Yes Poor ASS Y PCB Replace Over 4 9V Indoor unit room temperature sensor error...

Страница 25: ...sor 3 Assemble the room pipe sensor to PCB plug in and check the voltage of connector 3 and 4 If the resistance is below 0 5V or over 4 9V replace the indoor Main PCB short or disconnected in the PCB board Temperature C 15 20 25 Temperature C 30 35 40 Resistance Value Kohm 8 31 6 94 5 83 Resistance Value Kohm 14 68 12 09 10 Others The data tolerance is 3 6 2 3 Room Pipe sensor failure Indoor unit ...

Страница 26: ... 5 seconds Does the OPERATION lamp blink Does the Solid State Relay SS71 work properly Is the supply voltage of the fan motor sufficient Test rod location PCB CN72 Condition About AC180V Normal voltage pin 3 and 5 Fan operating Yes Yes Yes Yes No No No Check as in the procedure No power PCB is out of order PCB should be replaced Replace Motor Fan Capacitor Fan motor should be replaced Fan motor is...

Страница 27: ...ng out the power cord should be reconnected within 5 seconds Does the OPERATION lamp blink Yes No Yes No No No Yes Yes Outdoor unit is out of order Power relay is out of order Power relay should be replaced PCB should be checked Micom is out of order Sensor Should be replaced Room temperature sensor is out of order Check as in the procedure No Power Is the room sensor normal resistor 10 C 20 C 30 ...

Страница 28: ...n start when swing button of the remote control unit pushed Voltage at pin 57 60 of micom IC04 change Squarewave Voltage at pin 2 5 of CN61 motor connector change Squarewave UP DOWN louver motor is faulty Driver IC06 08 ULN2003A is faulty Micom IC04 is faulty Normal Check as in the procedure No Power After training on the heating operation should start in 5 minutes Is the number 40 of Micom IC04 D...

Страница 29: ...heck the voltage of No 3 and No 2 of the main PCB CN45 while operating the remote control When the voltage descends below 3V the assembly module PCB is normal and the main PCB is poor Then replace the main PCB 3 Replace the assembly display PCB because the module PCB is poor if the voltage between No 2 3 of CN45 maintains 5V after the remote control starts operation ...

Страница 30: ...N Speed High 2 Continuous Operation 1 Is the fuse disconnected F701 Checking the power voltage 1 Is the input voltage AC200V AC240V 2 Is the voltage between both terminals of the C103 on the 2nd side of the transformer AC12V 0 5V 3 Is the voltage between both terminals of OUT and GND of IC02 KA78L05 DC5V 0 5V Checking the power voltage 1 Check the voltage of the relay RY71 coil IC05 PIN 11 and GND...

Страница 31: ...15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 4 300 4 444 4 594 4 749 4 912 5 080 5 256 5 439 5 630 5 828 6 033 6 246 6 468 6 699 6 941 7 192 7 455 7 729 8 015 8 313 8 622 8 944 9 281 9 632 10 10 380 10 780 11 200 11 630 12 090 12 560 13 060 13 570 14 120 14 680 15 280 15 900 16 550 17 240 17 960 18 700 19 480 20 290 21 150 22 050 22 990 23 900 25 030 26 130 27 280 28 470 29 720 31 040 3...

Страница 32: ...to Table 6 3 4 Abnormal 0Ω Open or Short Measure the resistance between terminals of the connector CN72 with a tester Abnormal 0Ω Open or Short Measure the resistance between motor wires with a tester Abnormal 0Ω Open or Short Measure the resistance between the red wire and each terminal wire with a tester Normal About 300Ω at the normal temperature 20 C 30 C Abnormal 0Ω Open or Short Breakdown In...

Страница 33: ...6 2 8 5 1 1 1 2 1 1 3 1 1 4 1 1 5 1 1 6 12 1 1 1 1 1 3 7 7 5 7 6 7 7 7 4 7 1 7 9 7 3 7 2 7 8 1 2 11 9 10 13 You can search for the updated part code number through the ITSELF URL http itself sec samsung co kr 7 Exploded Views and Parts List 7 1 Indoor Unit ...

Страница 34: ...015F ASS Y REMOCON ASS Y 1 1 7 DB94 00529B ASS Y BACK BODY ASS Y 1 DB94 00529E ASS Y BACK BODY ASS Y 1 7 1 DB94 00040J ASS Y CROSS FAN ASS Y 1 1 7 2 DB60 20011A BOLT SPECIAL 1 1 7 3 DB31 10151C MOTOR FAN IN 1 1 7 4 DB61 01135A BACK BODY HIPS 1 1 7 5 DB61 01136A HOLDER MOTOR PP 1 1 7 6 DB63 00580A COVER IONIZER HIPS 1 1 7 7 DB73 00128A RUBBER BEARING 1 1 7 8 DB94 40007A BEARING MOTOR 1 1 7 9 DB93 0...

Страница 35: ...Samsung Electronics 34 7 2 Outdoor Unit 12 13 21 6 5 7 14 8 16 1 19 10 11 15 1 16 15 2 15 15 4 15 3 9 17 4 3 2 1 18 18 1 18 3 18 4 18 2 18K BTU 20 1 20 3 20 2 20 4 ...

Страница 36: ...ET SIDE LF SC 90073T 1 14 DB90 01878A ASS Y CABI UPPER ASS Y 1 15 G8D190JU1EH COMPRESSOR ROTARY 1 15 1 DB73 00067A GROMMET ISOLATOR NR 3 15 2 DB60 30028A NUT WASHER M8 3 15 3 DB60 30018A NUT FLANGE M5 1 15 4 DB63 10165D COVER TERMINAL NOTYL 1 16 DB99 00390A ASS Y 4WAY V V ASS Y 1 16 1 DB62 02285A VALVE SERVICE 1 2 1 17 DB99 00392A ASS Y VALVE CHECK ASS Y 1 18 DB93 02977B ASS Y CONTROL OUT ASS Y 1 ...

Страница 37: ...Samsung Electronics 36 Exploded Views and Parts List 17 11 12 5 4 1 3 14 9 19 7 8 10 13 21 16 16 1 15 1 15 2 15 15 4 15 3 2 6 18 18 2 18 5 18 4 18 3 18 1 24K BTU 20 1 20 4 20 2 20 3 20 5 ...

Страница 38: ... 01881A ASS Y CABI UPPER ASS Y 1 15 G5A240JU1EM COMPRESSOR ROTARY 1 15 1 DB73 00082A GROMMET MOUNT NR 3 15 2 DB60 30028A NUT WASHER M8 3 15 3 DB60 30018A NUT FLANGE M5 1 15 4 DB63 10165D COVER TERMINAL NOTYL 1 16 DB99 00391A ASS Y 4WAY V V ASS Y 1 16 1 DB62 02342A VALVE SERVICE 5 8 1 17 DB99 00393A ASS Y VALVE CHECK ASS Y 1 18 DB93 02975C ASS Y CONTROL OUT ASS Y 1 18 1 DB35 00040A RELAY 30A 277V 1...

Страница 39: ...Samsung Electronics 38 7 3 Ass y Control In Indoor Unit ATYPE B TYPE DB93 02985C SH18AP0D B TYPE DB93 02985A SH24AP6D A TYPE ...

Страница 40: ... PCB ASS Y 1 1 5 DB93 01369B ASS Y MODULE PCB ASS Y 1 1 6 DB70 00277A PLATE TERMINAL LOW SGCC M T1 2 1 1 7 DB61 00171A HOLDER WIRE CLAMP ABS 1 1 8 6001 000929 SCREW MACHINE PH M3 L22 1 1 SNA 9 6001 000725 SCREW MACHINE TH M4 L16 4 4 SNA 10 DB93 01380A ASS Y C W MODULE PCB ASS Y 1 1 11 DB39 00643F C W STEP MOTOR UP DOWN ASS Y 1 1 12 DB32 00020H ASS Y THERMISTOR 4P 103AT 1 1 13 DB62 10368X SEAL 61x4...

Страница 41: ...ON SLEEP SELECT MODE AUTO COOL DRY FAN FAN SPEED SELECT H M L BLADE H MOVING SELECT ON OFF TIMER SELECT FUNCTION SELECT TEMPERATURE SELECT ZERO VOLTAGE DETECT BLADE CONTROL AUTO GRILLE CONTROL INDOOR FAN MOTOR CONTROL COMPRESSOR CONTROL TEMPERATURE CONTROL TIMER BUZZER CONTROL FUNCTION CONTROL TRIGGER SIGNAL SSR COMPRESSOR DRIVE OUTDOOR FAN MOTOR DRIVE STEPPING MOTOR DRIVE BUZZER DRIVE FUNCTION DR...

Страница 42: ...41 Samsung Electronics 9 Wiring Diagram 9 1 Indoor Unit This Document can not be used without Samsung s authorization Code No DB98 20916A SH18AP0D ...

Страница 43: ...Samsung Electronics 42 Wiring Diagram This Document can not be used without Samsung s authorization Code No DB98 21216A SH24AP6D ...

Страница 44: ...cument can not be used without Samsung s authorization 9 2 Outdoor Unit SH18APODX MARK NAME MARK NAME 20S SOLENOID COIL FM FAN MOTOR C1 MOTOR CAPACITOR FM FAN MOTOR C2 COMP CAPACITOR SH24AP6DX Code No DB98 21077A Code No DB68 20907A ...

Страница 45: ...MEMO Samsung Electronics 44 ...

Страница 46: ...e Manual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law Samsung Electronics Co Ltd Jan 2005 Printed in Korea Code No DB98 21605A 1 ...

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